Secondary Progressions API

Generate the secondary progressed chart for any date using the day-for-a-year key, where each day of ephemeris motion after birth stands in for one year of life. Returns every progressed body with its sign, degree, whole-sign house, motion, and retrograde state, plus the progressed Ascendant and Midheaven via the Naibod arc. The progressed Sun and progressed Moon are the headline timing markers for inner growth and emotional chapters. Secondary progressions API, progressed chart calculator, progressed Sun and Moon, progressed Ascendant and Midheaven.

Request

POST /api/v2/astrology/progressions

{
  "date": "1990-07-15",
  "time": "14:30:00",
  "latitude": 40.7128,
  "longitude": -74.006,
  "timezone": -5,
  "targetDate": "2025-07-15"
}

Response

Structured JSON with documented fields, verified against NASA JPL Horizons across 828 gold-standard tests. Not hallucinated text.

{
  "birthDetails": {
    "date": "1990-07-15",
    "time": "14:30:00",
    "latitude": 40.7128,
    "longitude": -74.006,
    "timezone": -5
  },
  "targetDate": "2025-07-15",
  "progressedDate": "1990-08-17",
  "elapsedYears": 35,
  "planets": [
    {
      "name": "Sun",
      "longitude": 165.18,
      "sign": "Virgo",
      "degree": 15.18,
      "house": 2,
      "speed": 0.985,
      "isRetrograde": false,
      "interpretation": "string"
    }
  ],
  "ascendant": {
    "longitude": 134.27,
    "sign": "Leo",
    "degree": 14.27
  },
  "midheaven": {
    "longitude": 134.27,
    "sign": "Leo",
    "degree": 14.27
  },
  "summary": "Your secondary progressed chart advances the birth chart by one day for each year of life."
}

Supported options

Call it in your language in seconds.

Every snippet is generated from the live OpenAPI spec, so method names, parameters, and fields always match production.

import { createRoxy } from '@roxyapi/sdk'

const roxy = createRoxy(process.env.ROXY_API_KEY!)
const { data } = await roxy.astrology.generateProgressions({ body: { date: '1990-07-15', time: '14:30:00', latitude: 40.7128, longitude: -74.006, timezone: -5, targetDate: '2025-07-15' } })

from roxy_sdk import create_roxy

roxy = create_roxy("YOUR_API_KEY")
result = roxy.astrology.generate_progressions(date='1990-07-15', time='14:30:00', latitude=40.7128, longitude=-74.006, timezone='America/New_York', target_date='2025-07-15')

use function RoxyAPI\Sdk\createRoxy;

$roxy = createRoxy(getenv('ROXY_API_KEY'));
$result = $roxy->astrology->generateProgressions(date: '1990-07-15', time: '14:30:00', latitude: 40.7128, longitude: -74.006, timezone: -5, targetDate: '2025-07-15');

using RoxyApi;

var roxy = new RoxyClient(Environment.GetEnvironmentVariable("ROXY_API_KEY")!);
var result = await roxy.Astrology.Progressions.PostAsync(new() { /* request fields above */ });

import roxyapi "github.com/RoxyAPI/sdk-go"

roxy, _ := roxyapi.NewRoxy(os.Getenv("ROXY_API_KEY"))
resp, _ := roxy.Astrology.GenerateProgressions(ctx, nil, roxyapi.GenerateProgressionsJSONRequestBody{ /* request fields above */ })

curl -X POST "https://roxyapi.com/api/v2/astrology/progressions" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"date":"1990-07-15","time":"14:30:00","latitude":40.7128,"longitude":-74.006,"timezone":-5,"targetDate":"2025-07-15"}'

More Secondary Progressions endpoints

The Secondary Progressions API bundles these related endpoints under one key.

Remote MCP for AI agents

Every Western Astrology endpoint is a callable tool on the Remote MCP server over Streamable HTTP. No local setup, no Docker. Claude, ChatGPT, Cursor, and any MCP client auto-discover the tools and ground their answers in verified data.

claude mcp add --transport http \
  roxy-astrology https://roxyapi.com/mcp/astrology \
  --header "X-API-Key: YOUR_KEY"

Tool name for POST /astrology/progressions: post_astrology_progressions. Full MCP setup guide

What you can build

Drop-in UI components

Render Secondary Progressions API responses without building charts yourself. These open source, framework-agnostic web components take the typed response and draw it, in React, Vue, Svelte, Angular, plain HTML, and WordPress.

Related capabilities

Secondary Progressions API FAQ